Alternative to 291966-B21: Better-Value Equivalents in Stock
Comparing the 291966-B21 (291966-B21 - HP SmartArray 641 Single Channel Ultra320 with Battery and 128M) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 291966-B21
| SKU | 291966-B21 |
|---|---|
| Product | 291966-B21 - HP SmartArray 641 Single Channel Ultra320 with Battery and 128M |
| Current price | $71.58 |
| Stock status | In Stock |
| Detail page | View 291966-B21 › |
Alternatives to 291966-B21
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
409248-001 - HP 128MB Battery Backed Write Cache (bbwc) Memory Module for Ultra-320 Smart Array 641 642 6i Controller (no Battery)
SKU: 409248-001
Price: $77.63
012304-001 - HP 128MB Battery Backed Write Cache (bbwc) Memory Module for Ultra-320 Smart Array 641 642 6i Controller (no Battery)
SKU: 012304-001
Price: $77.63
012796-001 - HP 128MB Battery Backed Write Cache (BBWC) Memory Module for Ultra320 Smart Array 641 642 6i Controller (no Battery)
SKU: 012796-001
Price: $83.88
305414-001 - HP Smart Array 641 64-Bit 133MHz PCI-X SCSI Ultra320 68-Pin Single Channel RAID Controller with 64MB Cache
SKU: 305414-001
Price: $71.58
011818-002 - HP Smart Array 641 Single Channel 64-bit 133MHz PCI-x Ultra-320 SCSI RAID Controller Card Only
SKU: 011818-002
Price: $175.74
HP-305414-001 - HP Smart Array 641 64-Bit 133MHz PCI-X SCSI Ultra320 68-Pin Single Channel RAID Controller with 64MB Cache
SKU: HP-305414-001
Price: $235.79
305414R-001 - HP Smart Array 641 64-Bit 133MHz PCI-X SCSI Ultra320 68-Pin Single Channel RAID Controller with 64MB Cache
SKU: 305414R-001
Price: $717.53
356272-001 - HP 128MB Battery Backed Write Cache for Smart Array 641/642/6I/E200
SKU: 356272-001
Price: $71.58
012795-001 - HP 128MB DDR Battery Backed Write Cache Enabler Memory for Smart Array 641/642 Controller
SKU: 012795-001
Price: $71.58
351518-001 - HP 128MB Battery Backed Write Cache Enabler Memory for Smart Array 641/642 Controller
SKU: 351518-001
Price: $73.68
355999-001 - HP 128MB Battery Backed Write Cache Enabler Memory for Smart Array 641/642 Controller
SKU: 355999-001
Price: $96.84
453833-001 - HP 128MB Battery Backed Write Cache for Smart Array 641/642/6i/e200
SKU: 453833-001
Price: $103.62
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.